diff -r 92979427f3bb -r 5e372c1fe64c makelib/config-linux-gnu.make
--- a/makelib/config-linux-gnu.make	Fri Oct 06 09:30:38 2017 +0100
+++ b/makelib/config-linux-gnu.make	Fri Oct 06 09:35:58 2017 +0100
@@ -47,26 +47,6 @@
 CC=gcc-6
 endif
 
-
-#
-# * `-fno-strict-aliasing` since it's almost impossible to write a memory
-#   manager without breaking C's aliasing rules. Better be on a safe side.
-#   Nice post about these things: http://blog.regehr.org/archives/1307
-#
-# * `-Wno-strict-aliasing` to turn of warnings about breaking aliasing rules.
-#   While one would think these wanings should be turned off when
-#   `-fno-strict-aliasing` is passed, apparently some GCCs bark anyway.
-#
-# * `-fno-stack-protector` is (was) required on Ubuntu brands where it's
-#   by default on. Smalltalk/X green thread implementation does not wotk
-#   well with it.
-#
-# * `-U_FORTIFY_SOURCE` is (was) required on Gentoo as a workaround for failing
-#   longjmp check when _FORTIFY_SOURCE is defined (which is enabled by default
-#   on Gentoo. Remove when fixed.
-#
-OPT=-fPIC -O2 -fno-strict-aliasing -Wno-strict-aliasing -fno-stack-protector -ggdb3 -pipe -U_FORTIFY_SOURCE
-
 STC_LEXLIB=
 
 OS=-DLINUX